Hence, great efforts have been devoted to TAPG task [1]}, [2]}.
These research generally use the temporal Intersection-over-Union (tIoU) between the proposal and instance, called the action score, to evaluate the confidence of the proposal in order to develop high-quality temporal action proposals with dependable confidence scores.
However, the background information is also significant but was previously overlooked.
For instance, as illustrated in Figure REF , we can easily restrict false-positive proposals by detecting the background “Move a chair".
Furthermore, we can evaluate the inconsistency between the background “Move a chair" and the action “Hitting a pinata", leading to better action score and background score of the proposal.
